#! /bin/bash
# This script tests: pbmtogem gemtopbm
# Also requires: gemtopnm

  alias gemtopbm="${PBM_TESTPREFIX}gemtopbm"
  alias pbmtogem="${PBM_TESTPREFIX}pbmtogem"
  shopt -s expand_aliases

# Should print 2425386270 41, cksum of testgrid.pbm
pbmtogem testgrid.pbm | gemtopbm | cksum